> - In order to ensure the customer experience, an operator wants to attract 
> all traffic from the global Internet to LISP sites that it supports through 
> PITRs that it operates.

That would create a bad customer experience.

> - In order to maintain financial viability, that same operator does not want 
> to attract any traffic from the global Internet to LISP sites that it does 
> not support through PITRs that it operates.

It certainly does if its customers are LISP sites.

> Do you agree that these are both valid requirements? If so, how can the 
> operator do this while advertising only large aggregates of the EID address 
> block to the global Internet?

No, I don't agree.

As I said before, the /32 advertisements of an EID-block are advertised within 
an ISP towards the edges of the network. Those edges are towards its customers 
so its customers, as sources in non-LISP sites, can reach destinations in LISP 
sites.

Dino

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